Savoir vs Pouvoir: Know How vs Be Able To
Master the crucial distinction between savoir (learned skill) and pouvoir (circumstantial ability).
SAVOIR vs POUVOIR: both translate as 'can' in English but have distinct meanings
SAVOIR + infinitive = to know how to (a LEARNED SKILL, a competence acquired over time): Je sais nager (I know how to swim) (I have learned and am capable). Tu sais conduire (you know how to drive) ? Elle sait parler trois langues (she knows how to speak three languages)
POUVOIR + infinitive = to be able to (CIRCUMSTANCES, permission, physical opportunity in the moment): Je ne peux pas nager aujourd'hui (I cannot swim today) (injured, pool closed, no time). Tu peux entrer (you can enter) (are you allowed? is it physically possible?)
KEY CONTRAST: Je sais faire du vélo (I know how to ride a bike) (the skill is there). Je ne peux pas faire du vélo aujourd'hui (I cannot ride a bike today) (broken bike, sprained ankle; skill is fine, circumstances block it)
SAVOIR CONJUGATION (irregular): je sais (I know), tu sais (you know), il/elle/on sait (he/she/one knows), nous savons (we know), vous savez (you know), ils/elles savent (they know)
SAVOIR vs CONNAÎTRE: SAVOIR = know facts or how to do things: Je sais qu'il est médecin (I know that he is a doctor).
Common mistake: using pouvoir to express a learned skill: 'Je peux nager' implies circumstances, not competence. To claim you have learned the skill, say Je sais nager (I know how to swim)
- Je sais parler français et anglais. — I know how to speak French and English. (a learned skill)
- Je peux parler maintenant, la réunion est finie. — I can speak now, the meeting is over. (circumstances allow)
- Est-ce que tu sais nager ? — Do you know how to swim?
- Est-ce que tu peux nager dans ce lac ? — Can you swim in this lake? (is it allowed / is it safe?)
- Je ne sais pas. — I don't know.
- Tu sais à quelle heure arrive le train ? — Do you know what time the train arrives?